Deleted Web site: Baltimore and the Nineteenth of April, 1861: A Study of the War, the memoir of George William Brown then the mayor of Baltimore city, later a member of the university board of trustees of the Johns Hopkins University.

Invalidated site: Baltimore and the Nineteenth of April, 1861: A Study of the War, the memoir of George William Brown then the mayor of Baltimore city, later a member of the university board of trustees of the Johns Hopkins University.